Home / 30,111.72-41,550.76-16,679.56

Finding the Fourth Proportional to 30,111.72, 41,550.76 and 16,679.56

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Solution

The fourth proportional to 30,111.72, 41,550.76 and 16,679.56 is: 23,015.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,111.72 : 41,550.76 = 16,679.56 : x
  2. Step 2: Convert to fraction form
    30,111.72/41,550.76 = 16,679.56/x
  3. Step 3: Cross multiply
    30,111.72x = 41,550.76 × 16,679.56
  4. Step 4: Simplify right side
    30,111.72x = 693,048,394.47
  5. Step 5: Solve for x
    x = 693,048,394.47/30,111.72
  6. Step 6: Final answer
    x = 23,015.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.